blender28_make_instances.py

import bpy

srcs = ['grao_trigo_01_geo','Retopo_coentro1_low','Retopo_coentro2_low','Retopo_coentro3_low']
selected_objects = bpy.context.selected_objects
bpy.ops.object.select_all(action='SELECT')
all_objects = bpy.context.selected_objects
bpy.ops.object.select_all(action='DESELECT')

src_objects = [bpy.data.objects[src] for src in srcs]

for obj in all_objects:
    for src in src_objects:
        if src.name in obj.name and obj.name != src.name:
            obj.data = src.data